KR20230030627A - Receiving device positioning method and device, system, storage medium and electronic device - Google Patents

Abstract

Embodiments of the present application provide a positioning method and device, system, storage medium, and electronic device of a receiving device, the method comprising: transmitting a pilot signal to an electromagnetic reflection surface through a transmitting device; Adjustment and control information is transmitted to the electromagnetic reflection surface control unit through the transmission device, wherein the adjustment and control information includes timing information and adjustment and control direction information, and the adjustment and control information is transmitted by the electromagnetic reflection surface control unit by a target pilot signal in a target time zone. using a reflected beam formed on the electromagnetic reflection surface to direct a preset direction, wherein the preset direction is a direction indicated by preset direction information corresponding to a target time zone; and determining a signal measurement result corresponding to a preset direction through a transmitting device or a receiving device, and positioning the receiving device according to the preset direction and the signal measurement result.

Description

Receiving device positioning method and device, system, storage medium and electronic device

Embodiments of the present application relate to the field of communication, and specifically, to a method and device for positioning a receiving device, a system, a storage medium, and an electronic device.

Conventional methods for estimating the direction of arrival (DOA) of an array beam include methods such as Multiple Signal Classification (MUSIC) and Estimating Signal parameter via Rotation Invariance Techniques (ESPRIT), This is based on an independent measurement function of the array (e.g. measurement of incoming beam phase). However, for smart electromagnetic reflective surfaces (also referred to as smart reflective surfaces, electromagnetic reflective surfaces), this increase in measurement function reduces the reflection efficiency and increases cost, so smart reflective surfaces generally use the phase measurement function of an independent electromagnetic unit. It is not equipped, and this makes all conventional array DOA estimation methods unusable on smart reflective surfaces.

Conventional non-line-of-sight positioning methods include a line-of-sight reconstruction positioning method, a line-of-sight weighted positioning method, a Time of Arrival (TOA) positioning method based on line-of-sight reconstruction and smooth processing phase combination, and a positioning method based on inequality constraints. The invisibility distance is converted to the visible distance using the specular principle, or the effect of the invisible distance amount is reduced using a statistical method, and the positioning method requires the cooperation of a plurality of base stations; In addition, positioning methods based on fingerprint maps or global positioning systems in the related art require different sets of positioning systems to be deployed and related sets, increasing costs and limiting implementation in some scenarios. As can be seen, in related technologies, positioning requires the use of multiple sets of systems and the support of other related technologies, and the characteristics of the electromagnetic reflection surface itself cannot be used to position the terminal.

Among related technologies, an effective technical solution has not yet been proposed for the technical problem of the related technology that positioning of the terminal cannot be performed using the characteristics of the electromagnetic reflection surface itself.

Embodiments of the present application provide a positioning method, device, system, storage medium, and electronic device of a receiving device to solve the technical problem of the related art that positioning of a terminal cannot be performed using at least the characteristics of the electromagnetic reflection surface itself.

According to an embodiment of the present application, transmitting a pilot signal to an electromagnetic reflection surface through a transmitting device; The adjustment and control information is transmitted to the electromagnetic reflection surface control unit through the transmitting device, wherein the adjustment and control information includes timing information and adjustment and control direction information, and the adjustment and control information is transmitted by the electromagnetic reflection surface control unit to the target time zone. A pilot signal is used to instruct a reflected beam formed on the electromagnetic reflection surface to be directed in a preset direction, wherein the preset direction is a direction indicated by preset direction information corresponding to the target time zone, and the preset direction is directed to a target area, the timing information includes the target time zone, the adjustment control direction information includes the preset direction information, and the pilot signal transmitted through the transmitter includes the target pilot signal. step; and determining a signal measurement result corresponding to the preset direction through the transmitting device or the receiving device, and positioning the receiving device according to the preset direction and the signal measurement result, wherein the signal measurement result is in the target area. It provides a positioning method of a receiving device including a step obtained by measuring the target pilot signal reflected along the preset direction by the receiving device located therein.

In an exemplary embodiment, before the step of transmitting the pilot signal to the electromagnetic reflection surface through the transmission device, the method further includes determining the adjustment control information according to the target area through the transmission device. do; The step of determining the adjustment and control information according to the target area may include determining a plurality of preset direction information according to a plurality of sub areas obtained by dividing the target area, and determining a plurality of pieces of preset direction information according to the plurality of preset direction information. The target time zone is determined, wherein each of the predetermined direction information and each sub-area of the plurality of sub-areas correspond to each other on a one-to-one basis, the timing information includes a plurality of target time zones, and each of the target time zones is respectively one-to-one correspondence with the preset direction information of; or determining a plurality of preset directions for directing the target region, determining each preset direction information as one preset direction among the plurality of preset directions, and determining the plurality of preset direction information determining a plurality of target time zones according to the method, wherein the timing information includes a plurality of target time zones, and each of the target time zones corresponds to each of the preset direction information on a one-to-one basis.

In an exemplary embodiment, after the step of sending the adjustment control information to the electromagnetic reflective surface control unit via the transmitting device, the method further comprises: target reflection coefficient according to the preset direction information via the electromagnetic reflective surface control unit; determining; and adjusting a reflection coefficient of each electromagnetic unit of the electromagnetic reflection surface to the target reflection coefficient through the electromagnetic reflection surface control unit to form a reflected beam in the preset direction on the electromagnetic reflection surface. , the reflection coefficient of each electromagnetic unit includes at least one of width, phase, and polarization.

In an exemplary embodiment, when the preset direction information is a target reflection coefficient of each electromagnetic unit corresponding to the preset direction, after the step of sending adjustment control information to an electromagnetic reflection surface control unit through the transmitting device, The method includes adjusting a reflection coefficient of each electromagnetic unit of the electromagnetic reflection surface to the target reflection coefficient through the electromagnetic reflection surface control unit to form a reflected beam in the preset direction on the electromagnetic reflection surface. Further, the reflection coefficient of each electromagnetic unit includes at least one of a width, a phase, and a polarization.

In an exemplary embodiment, when the preset direction information is an input parameter corresponding to the preset direction, after sending adjustment control information to an electromagnetic reflective surface control unit through the transmitting device, the method comprises: A target reflection coefficient is determined according to the input parameters through an electromagnetic reflection surface control unit, and a reflection coefficient of each electromagnetic unit of the electromagnetic reflection surface is adjusted to the target reflection coefficient, so that the reflection beam in the preset direction is directed to the electromagnetic reflection surface. , wherein the input parameter determines the target reflection coefficient, and the reflection coefficient of each electromagnetic unit includes at least one of a width, a phase, and a polarization.

In an exemplary embodiment, the adjustment and control information further includes one of a beam adjustment and control start time and a beam adjustment and control end time, wherein the beam adjustment and control start time is the start time of the beam adjustment and control by the electromagnetic reflection surface control unit. is used for instructing to start controlling each electromagnetic unit of the electromagnetic reflection surface to control a reflected beam direction of the electromagnetic reflection surface at a time; The beam adjustment control end time is used to instruct the electromagnetic reflection surface control unit to end control of each electromagnetic unit of the electromagnetic reflection surface at the beam adjustment control end time.

In one exemplary embodiment, when determining a signal measurement result corresponding to the preset direction through the transmitter and positioning the receiver according to the preset direction and the signal measurement result, via the transmitter Prior to the step of determining the signal measurement result corresponding to the preset direction, the method may include receiving a measurement result set transmitted by the receiving device through the transmitting device, wherein the measurement result set corresponds to the target time zone. further comprising; including the signal measurement result; The step of determining a signal measurement result corresponding to the preset direction through the transmitter may include determining the preset direction indicated by the preset direction information corresponding to the target time zone according to the target time zone; and determining a signal measurement result corresponding to the time zone as a signal measurement result corresponding to the preset direction.

In one exemplary embodiment, when determining a signal measurement result corresponding to the preset direction through the receiving device and positioning the receiving device according to the preset direction and the signal measurement result, through the receiving device Prior to the step of determining a signal measurement result corresponding to the preset direction, the method may receive correspondence information transmitted by the transmitter through the receiver, wherein the correspondence information corresponds to the preset direction and the preset direction. a correspondence of target time zones, or the correspondence information is a correspondence between the predetermined direction and the target pilot signal; Determining a signal measurement result corresponding to the preset direction through the receiving device may include, when the corresponding relationship information is a correspondence relationship between the preset direction and the target time zone, the signal measurement result corresponding to the target time zone. Determined by a result of measuring a signal corresponding to a preset direction; or determining a signal measurement result corresponding to the target pilot signal as a signal measurement result corresponding to the preset direction when the correspondence relationship is the correspondence relationship between the preset direction and the target pilot signal.

In an exemplary embodiment, the positioning of the receiving device according to the preset direction and the signal measurement result may include: in each preset direction according to the preset direction and the position and height of the electromagnetic reflection surface. The corresponding reflection beam determines the position coordinates (xi, yi) in the target area, and the value of the signal measurement result corresponding to the preset direction is set as the ordinate coordinate (zi) corresponding to the position coordinates (xi, yi) ), wherein i is an identifier of a reflected beam corresponding to the preset direction; and a Gaussian function fitting is performed according to the coordinate range in which the target region is located, the location coordinates (xi, yi), and the corresponding ordinate coordinates (zi) to obtain a fitted Gaussian function, and at the vertices of the fitted Gaussian function and obtaining a positioning result of positioning the receiving device according to the corresponding coordinates.

In one exemplary embodiment, a fitted Gaussian function is obtained by performing Gaussian function fitting according to a coordinate range in which the target region is located, the location coordinates (xi, yi), and the corresponding ordinate coordinate (zi), and the fitting Obtaining a positioning result of positioning the receiving device according to the coordinates corresponding to the vertices of the Gaussian function is obtained by sampling the abscissa range and the ordinate range in which the target area is located according to preset coordinate intervals, respectively, to obtain a set of sampled abscissas and obtaining a set of ordinates; Determine the ordinate coordinates (zw) corresponding to each abscissa (xw) in the set of abscissas from the ordinate coordinates (zi) corresponding to the position coordinates (xi, yi), and determine the ordinate axis corresponding to the position coordinates (xi, yi) Determine the ordinate coordinate zp corresponding to each ordinate yp in the ordinate set from the coordinate zi, wherein w and p are positive integers in the interval [1, n], and n is the number of samples to be sampled. step; Performing one-dimensional Gaussian function fitting according to the set of abscissas and the set of coordinates (xw, zw) composed of the set of ordinates (xw, zw) corresponding to each abscissa (xw) among the set of abscissas to obtain a fitted first Gaussian function; Obtaining a fitted second Gaussian function by performing one-dimensional Gaussian function fitting according to the ordinate set and a coordinate set (yp, zp) composed of ordinate coordinates (zp) corresponding to each ordinate (yp) among the set of ordinates; And determining a first coordinate (xt) corresponding to a vertex of the first Gaussian function and a second coordinate (yt) corresponding to a vertex of the second Gaussian function, and determining the xt and the yt of each of the positioning results determining an abscissa and an ordinate, wherein xt is an abscissa within the abscissa range, and yt is an ordinate within the ordinate range.

In an exemplary embodiment, the positioning of the receiving device according to the preset direction and the signal measurement result may include corresponding to each preset direction according to the preset direction and the position and height of the electromagnetic reflection surface. The reflected beam determines the position coordinates (xi, yi) in the target area, and determines the value of the signal measurement result corresponding to the preset direction as the ordinate coordinate (zi) corresponding to the position coordinate, i is an identifier of a reflected beam corresponding to the preset direction; Obtaining a fitted 2D Gaussian function by fitting a 2D Gaussian function according to a set of coordinates (xi, yi, zi) composed of the positional coordinates (xi, yi) and the ordinate coordinates (zi); And determining the coordinates (xt, yt) corresponding to the vertices of the two-dimensional Gaussian function, and determining the coordinates (xt, yt) as a positioning result obtained by positioning the receiving device, where xt is the location of the target area is an abscissa within an abscissa range, and yt is an ordinate within an ordinate range where the target region is located.

In one exemplary embodiment, after determining a signal measurement result corresponding to the preset direction through the transmitting device, and positioning the receiving device according to the preset direction and the signal measurement result, the method comprises: Determine target direction information according to a positioning result obtained by positioning the receiving device through the transmitting device, wherein the target direction information is determined by the electromagnetic reflecting surface control unit for each electromagnetic unit of the electromagnetic reflecting surface according to the target direction information. and instructing to control a reflection coefficient so that a reflected beam formed on the electromagnetic reflection surface by a frequency signal transmitted by the transmitting device is directed toward the receiving device.

In one exemplary embodiment, after determining a signal measurement result corresponding to the preset direction through the receiving device, and positioning the receiving device according to the preset direction and the signal measurement result, the method comprises: Determine target direction information according to a positioning result obtained by positioning the receiving device through the receiving device, wherein the target direction information is determined by the electromagnetic reflecting surface control unit for each electromagnetic unit of the electromagnetic reflecting surface according to the target direction information. and instructing to control a reflection coefficient so that a reflected beam formed on the electromagnetic reflection surface by a frequency signal transmitted by the transmitting device is directed toward the receiving device.

According to another embodiment of the present application, a transmission module for transmitting a pilot signal to an electromagnetic reflection surface through a transmission device; The adjustment and control information is transmitted to the electromagnetic reflection surface control unit through the transmitting device, wherein the adjustment and control information includes timing information and adjustment and control direction information, and the adjustment and control information is transmitted by the electromagnetic reflection surface control unit to the target time zone. A pilot signal is used to instruct a reflected beam formed on the electromagnetic reflection surface to be directed in a preset direction, wherein the preset direction is a direction indicated by preset direction information corresponding to the target time zone, and the preset direction is directed to a target area, the timing information includes the target time zone, the adjustment control direction information includes the preset direction information, and the pilot signal transmitted through the transmitter includes the target pilot signal. coordinating control module; and determining a signal measurement result corresponding to the preset direction through the transmitting device or the receiving device, and positioning the receiving device according to the preset direction and the signal measurement result, wherein the signal measurement result is in the target area. The positioning device of the receiving device including a; positioning module obtained by measuring the target pilot signal reflected along the preset direction received by the receiving device to be positioned is provided.

According to another embodiment of the present application, a positioning system for a receiving device includes a transmitting device, an electromagnetic reflecting surface control unit, an electromagnetic reflecting surface and a receiving device, wherein the transmitting device transmits a pilot signal to the electromagnetic reflecting surface and , and transmits adjustment and control information to the electromagnetic reflection surface control unit, wherein the adjustment and control information includes timing information and adjustment and control direction information, and the adjustment and control information is transmitted by the electromagnetic reflection surface control unit in a target time period by a target pilot signal. It is used to direct a reflected beam formed on the electromagnetic reflection surface toward a preset direction, wherein the preset direction is a direction indicated by preset direction information corresponding to the target time zone, and the preset direction guides a target area. direction, wherein the timing information includes the target time zone, the coordination and control direction information includes the preset direction information, and a pilot signal transmitted through the transmitter includes the target pilot signal; the electromagnetic reflection surface control unit is configured to direct a reflected beam formed on the electromagnetic reflection surface by the target pilot signal to the predetermined direction in the target time period according to the adjustment control information; the receiving device is configured to obtain a measurement result by measuring the received target pilot signal reflected along the predetermined direction, wherein the receiving device is located in the target area; The transmitting device or the receiving device is further configured to determine a signal measurement result corresponding to the preset direction, and position the receiving device according to the preset direction and the signal measurement result corresponding to the preset direction. It further provides a positioning system of

According to another embodiment of the present application, there is further provided a computer readable storage medium storing a computer program, wherein the computer program is configured to perform the steps of any one of the above method embodiments when executed.

According to another embodiment of the present application, an electronic device comprising a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to execute the computer program to perform the steps of any one of the above method embodiments. provides more

1 is a hardware structural block diagram of an electronic device of a positioning method of a receiving device according to an embodiment of the present application.
2 is a network architecture diagram of a positioning method of a receiving device according to an embodiment of the present application.
3 is a flowchart of a positioning method of a receiving device according to an embodiment of the present application.
4 is a plan schematic diagram of a deployment scenario of a smart electromagnetic reflective surface according to an embodiment of the present application.
5 is a schematic diagram of wireless signal quality recorded by a receiving device according to an embodiment of the present application.
6 is a schematic diagram of a correspondence relationship between time slots corresponding to wireless signal quality and location coordinates in a target area according to an embodiment of the present application.
7 is a schematic diagram of a two-dimensional display of wireless signal quality and location coordinates in a target area according to an embodiment of the present application.
8 is a schematic diagram of a one-dimensional display of wireless signal quality and location coordinates in a target area according to an embodiment of the present application.
9 is a schematic diagram (1) of fitting the radio signal quality in the x-axis direction and a one-dimensional Gaussian curve according to an embodiment of the present application.
10 is a schematic diagram (2) of fitting a y-axis direction wireless signal quality and a one-dimensional Gaussian curve according to an embodiment of the present application.
11 is a schematic diagram of wireless signal quality recorded by a receiving device according to another embodiment of the present application.
12 is a schematic diagram of a correspondence relationship between time slots corresponding to wireless signal quality and location coordinates in a target area according to another embodiment of the present application.
13 is a schematic diagram of a two-dimensional display of wireless signal quality and location coordinates in a target area according to another embodiment of the present application.
14 is a schematic diagram of a one-dimensional display of wireless signal quality and location coordinates in a target area according to another embodiment of the present application.
15 is a schematic diagram (1) of fitting a 1-dimensional Gaussian curve and wireless signal quality in the x-axis direction according to another embodiment of the present application.
16 is a schematic diagram (2) of fitting a y-axis direction wireless signal quality and a one-dimensional Gaussian curve according to another embodiment of the present application.
17 is a structural block diagram of a positioning device of a receiving device according to an embodiment of the present application.

Hereinafter, embodiments of the present application will be described in detail with reference to the drawings and based on embodiments.

It should be noted that the terms "first", "second", etc. in the specification, claims and drawings of the present application are used to distinguish similar objects, and are not intended to describe a specific order or sequential order.

Method embodiments provided in the embodiments of the present application may be performed in a mobile terminal, a computer terminal, or a similar computing device. Taking a case executed in an electronic device as an example, FIG. 1 is a hardware structural block diagram of an electronic device of a positioning method of a receiving device according to an embodiment of the present application. As shown in FIG. 1, the electronic device includes one or a plurality of processors 102 (processor 102 is a microprocessor (MCU) or a programmable logic device (FPGA)) of one or more (only one is shown in FIG. 1). (including but not limited to) and a memory 104 configured to store data, the electronic device further comprising a transmission device 106 and an input/output device 108 configured to perform a communication function. can do. Those skilled in the art will be able to understand that the structure shown in FIG. 1 is only illustrative and does not limit the structure of the electronic device. For example, the electronic device may include more or fewer components than those shown in FIG. 1 , or may have a configuration different from that shown in FIG. 1 .

The memory 104 may be configured to store software programs and modules of application software such as a computer program, for example, a computer program corresponding to a positioning method of a receiving device according to an embodiment of the present application, and the processor 102 executes various functional applications and data processing by executing computer programs stored in the memory 104, that is, implements the method. Memory 104 may include high-speed random memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory. In some implementations, memory 104 may further include memory configured remotely with respect to processor 102 , and such remote memory may be coupled to the electronic device via a network. Examples of the network include, but are not limited to, the Internet, a corporate internal network, a local area network, a mobile communication network, and combinations thereof.

Transmission device 106 is configured to transmit and receive data over a network. A specific example of the network may include a wireless network provided by a communication provider. In one example, the transmission device 106 includes one Network Interface Controller (NIC), which is connected to other network devices to communicate with the Internet. In one example, the transmitting device 106 may be a radio frequency (RF) module and may communicate with the Internet in a wireless manner.

An embodiment of the present application can be implemented in the network architecture shown in FIG. 2 , wherein the network architecture, as shown in FIG. 2 , includes a transmitting device (eg, a base station), a smart electromagnetic reflective surface control unit (ie, corresponding to the electromagnetic reflective surface control unit in the embodiments of the present application), a smart electromagnetic reflective surface (ie, the electromagnetic reflective surface in the embodiments of the present application), and a receiving device (eg, a terminal). The transmitting device includes a radio frequency unit or antenna, and the transmitting device is configured to plan, place, and transmit a specific radio signal, for example, the transmitting device may transmit a frequency signal (e.g., eg, a pilot in an embodiment of the present application); the smart reflective surface control unit is configured to control the reflection coefficient of each electromagnetic unit (also called electromagnetic reflective surface) of the smart reflective surface; The smart electromagnetic reflective surface is composed of controllable electromagnetic units with a plurality of groups of reflection coefficients, and through control of the reflection coefficients of each electromagnetic unit, the smart electromagnetic reflective surface forms a predetermined reflection beam antenna direction diagram (i.e., smart reflection form a reflected beam in a predetermined direction on the surface); The receiving device is configured to receive radio signals and to measure, record or analyze the received radio signals. The target pilot signal transmitted by the transmitter is pre-planned and configured by the transmitter (e.g. base station), and the transmitter notifies the receiver of the planned target pilot signal so that the receiver can transmit the target pilot signal to the transmitter. make it possible to know

This embodiment provides a positioning method of a receiving device executed in the network architecture, and FIG. 3 is a flowchart of a positioning method of a receiving device according to an embodiment of the present application. As shown in FIG. 3, the flow is,

Transmitting a pilot signal to an electromagnetic reflection surface through a transmission device (S302);

Transmits adjustment and control information to the electromagnetic reflection surface control unit through the transmitting device, wherein the adjustment and control information includes timing information and adjustment and control direction information, and the adjustment and control information is transmitted by the electromagnetic reflection surface control unit to a target pilot in a target time zone. It is used to direct a reflected beam formed on the electromagnetic reflection surface to a predetermined direction by a signal, wherein the predetermined direction is a direction indicated by the predetermined direction information corresponding to the target time zone, and the preset direction is directing to a target area, the timing information including the target time zone, the adjustment and control direction information including the preset direction information, and a pilot signal transmitted through the transmitter including the target pilot signal; (S304); and

A signal measurement result corresponding to the preset direction is determined through the transmitter or receiver, and the receiver is positioned according to the preset direction and the signal measurement result, wherein the signal measurement result is located in the target area. It includes a step (S306), which is a result obtained by measuring the target pilot signal reflected along the preset direction by the receiving device receiving the receiving device.

Through the above steps, the pilot signal is transmitted to the electromagnetic reflection surface through the transmission device; The adjustment and control information is transmitted to the electromagnetic reflection surface control unit through the transmitting device, wherein the adjustment and control information includes timing information and adjustment and control direction information, and the adjustment and control information is transmitted by the electromagnetic reflection surface control unit to the target time zone. A pilot signal is used to instruct a reflected beam formed on the electromagnetic reflection surface to be directed in a preset direction, wherein the preset direction is a direction indicated by preset direction information corresponding to the target time zone, and the preset direction is directed to a target area, the timing information includes the target time zone, the adjustment and control direction information includes the preset direction information, and a pilot signal transmitted through the transmitter includes the target pilot signal. ; A signal measurement result corresponding to the preset direction is determined through the transmitter or receiver, and the receiver is positioned according to the preset direction and the signal measurement result, wherein the signal measurement result is located in the target area. is a result obtained by measuring the target pilot signal reflected along the preset direction received by the receiving device. Therefore, it is possible to solve the technical problem of the related art in which the positioning of the terminal cannot be performed using the characteristics of the electromagnetic reflection surface itself, thereby achieving the effect of positioning the terminal using the characteristics of the electromagnetic reflection surface itself.

It should be noted that, in an embodiment of the present application, using a set of systems (i.e., using one base station and an electromagnetic reflective surface), and using the ability of the reflective surface itself, positioning for a receiving device can be implemented, , it is possible to complete positioning for the receiving device by using one base station and using the characteristics of the electromagnetic reflection surface itself.

In the above embodiment, the signal measurement result may be signal quality, signal field strength level or signal reception power.

The order of performing steps S302 and S304 may be interchanged, that is, step S304 may be performed first and then step S302 may be performed.

In an exemplary embodiment, before the step of transmitting the pilot signal to the electromagnetic reflection surface through the transmitting device, the method further includes determining the adjustment control information according to the target area through the transmitting device; ; The step of determining the adjustment and control information according to the target area may include determining a plurality of preset direction information according to a plurality of sub areas obtained by dividing the target area, and determining a plurality of pieces of preset direction information according to the plurality of preset direction information. The target time zone is determined, wherein each of the predetermined direction information and each sub-area of the plurality of sub-areas correspond to each other on a one-to-one basis, the timing information includes a plurality of target time zones, and each of the target time zones is respectively one-to-one correspondence with the preset direction information of; or determining a plurality of preset directions for directing the target region, determining each preset direction information as one preset direction among the plurality of preset directions, and determining the plurality of preset direction information determining a plurality of target time zones according to the method, wherein the timing information includes a plurality of target time zones, and each target time zone corresponds to each of the preset direction information on a one-to-one basis.

In the above embodiment, the transmitting device partitions the target area into a plurality of sub areas. For example, the target area is divided into sub area 1, sub area 2, sub area 3, etc., according to the plurality of sub areas. Preset direction information corresponding to each sub-region on a one-to-one basis, for example, preset direction information 1, preset direction information 2, and preset direction information 3 is determined. the preset direction information instructs the electromagnetic reflective surface control unit to adjust a reflection coefficient of each electromagnetic unit of the electromagnetic reflective surface so that a reflected beam formed on the electromagnetic reflective surface is directed to a sub-region corresponding to the preset direction information; Therefore, by controlling the electromagnetic reflection surface, the reflected beam is sequentially directed to each sub-area in the target area, so that the transmitter scans the target area. In one exemplary embodiment, the transmitting device may determine preset direction information corresponding to each sub-region according to a scanning order of the sub-region in the target region, determine timing information according to the determined preset direction information (ie, , Determine a plurality of target time zones, each target time zone having corresponding preset direction information), for example, the determined plurality of preset direction information includes preset direction information 1, preset direction information 2, and preset direction information 2 In the case of setting direction information 3, the timing information includes target time zone 1, target time zone 2, and target time zone 3, target time zone 1 corresponds to preset direction information 1, target time zone 2 corresponds to preset direction information 2, , target time zone 3 corresponds to preset direction information 3.

In the above embodiment, the transmitting device may directly determine a plurality of preset directions in the target area, for example, determine a first preset direction at a position pointing to the target area in the target area, and select the target area. determine a second preset direction of another position to be directed, that is, determine a plurality of preset directions, and determine each preset direction information as one preset direction among the plurality of preset directions; The set direction itself may be used as one piece of preset direction information. After determining the plurality of pieces of preset direction information, the transmitting device may determine a target time zone corresponding to the scanning order according to the scanning order for the location of the target area. For example, the timing information includes target time zone 1 and target time zone 2, target time zone 1 corresponds to preset direction information 1, and target time zone 2 corresponds to preset direction information 2.

It should be noted that, in the embodiments of the present application, the target time zone may be a time zone corresponding to a time slot number (ie, a time slot number), and the timing information may be a time zone corresponding to a time slot number (ie, a corresponding time slot). time zone corresponding to), that is, the timing information includes time zones corresponding to a plurality of time slots arranged in order. Further, the adjustment control direction information includes a plurality of pieces of preset direction information, and respective target time zones in the timing information correspond to each preset direction information in the adjustment control direction information on a one-to-one basis. Therefore, in the embodiments of the present application, by sending adjustment and control information to the electromagnetic reflection surface control unit, the electromagnetic reflection surface control unit produces a reflected beam formed on the electromagnetic reflection surface by a target pilot signal in the target time period during the target time period. directing the preset direction to which the corresponding preset direction information points; When the next target time period of the target time period arrives (eg, the start time of the next target time period arrives), the reflected beam formed on the electromagnetic reflection surface by the target pilot signal through the electromagnetic reflection surface control unit is transmitted to the next target time period. It is possible to direct the preset direction information corresponding to the time zone to the preset direction. In this way, the transmission beam of the electromagnetic reflection surface is controlled to be directed in a corresponding direction within a certain target time period of the timing information through the electromagnetic reflection surface control unit, the corresponding direction being indicated by the preset direction information corresponding to the certain target time period. is the direction

In an exemplary embodiment, after the step of sending the adjustment control information to the electromagnetic reflective surface control unit through the transmitting device, the method further configures the target reflection coefficient according to the preset direction information through the electromagnetic reflective surface control unit. deciding; and adjusting a reflection coefficient of each electromagnetic unit of the electromagnetic reflection surface to the target reflection coefficient through the electromagnetic reflection surface control unit to form a reflected beam in the preset direction on the electromagnetic reflection surface. , the reflection coefficient of each electromagnetic unit includes at least one of width, phase, and polarization.

In an exemplary embodiment, when the preset direction information is a target reflection coefficient of each electromagnetic unit corresponding to the preset direction, after the step of sending adjustment control information to an electromagnetic reflection surface control unit through the transmitting device, The method includes adjusting a reflection coefficient of each electromagnetic unit of the electromagnetic reflection surface to the target reflection coefficient through the electromagnetic reflection surface control unit to form a reflected beam in the preset direction on the electromagnetic reflection surface. The reflection coefficient of each electromagnetic unit includes at least one of a width, a phase, and a polarization.

In an exemplary embodiment, when the preset direction information is an input parameter corresponding to the preset direction, after sending adjustment control information to an electromagnetic reflective surface control unit through the transmitting device, the method comprises: A target reflection coefficient is determined according to the input parameters through an electromagnetic reflection surface control unit, and a reflection coefficient of each electromagnetic unit of the electromagnetic reflection surface is adjusted to the target reflection coefficient, so that the reflection beam in the preset direction is directed to the electromagnetic reflection surface. , wherein the input parameter determines the target reflection coefficient, and the reflection coefficient of each electromagnetic unit includes at least one of a width, a phase, and a polarization.

In one exemplary embodiment, the adjustment control information further includes one of a beam adjustment control start time and a beam adjustment control end time, wherein the beam adjustment control start time is the beam adjustment control start time when the electromagnetic reflection surface control unit to start controlling each electromagnetic unit of the electromagnetic reflection surface to control a reflected beam direction of the electromagnetic reflection surface; The beam adjustment control end time instructs the electromagnetic reflection surface control unit to end control of each electromagnetic unit of the electromagnetic reflection surface at the beam adjustment control end time.

The electromagnetic reflective surface control unit also adjusts a reflection coefficient of the electromagnetic reflective surface to a target reflection coefficient corresponding to a first preset direction according to a first target time period in the timing information at the beam adjusting control start time, The set direction is a direction indicated by preset direction information corresponding to the first target time zone.

In one selectable embodiment, each target time period in the timing information constitutes one continuous time period, the start time of the first target time period in the timing information is the start time of the beam adjustment control, and the end time of the last target time period is the beam adjustment control start time. is the end time of the coordination control, and the end time of each intermediate target time zone (i.e., the target time zone between the first target time zone and the last target time zone) is the start time of the next target time zone. For example, the timing information includes target time zone 1 to target time zone 3, the end time of target time zone 1 is the start time of target time zone 2, the end time of target time zone 2 is the start time of target time zone 3, and the target time zone is the start time of target time zone 2. The start time of 1 is the beam steering control start time, and the end time of the target time zone 3 is the beam steering control end time.

In an exemplary embodiment, the timing information may be a set of time slots corresponding to time slots (eg, a time slot corresponding to a first time slot to a time slot corresponding to a 180 th time slot), and the target time slot is a target time slot. It is a time slot corresponding to the timing number (target time slot or target time slot number, eg, one of the first to 180th time slots). Optionally, the transmitting device records the correspondence between the target time zone and the pilot signal transmitted within the target time zone, and the receiving device records the corresponding relationship between the target time zone and the target pilot signal received within the target time zone when receiving the target pilot signal. do. It should be explained that the correspondence between the target time zone and the target pilot signal received within the target time zone recorded by the transmitting device coincides with the corresponding relationship between the target time zone and the target pilot signal received within the target time zone recorded by the receiving device.

In one exemplary embodiment, when determining a signal measurement result corresponding to the preset direction through the transmitter and positioning the receiver according to the preset direction and the signal measurement result, via the transmitter Prior to the step of determining the signal measurement result corresponding to the preset direction, the method may include receiving a measurement result set transmitted by the receiving device through the transmitting device, wherein the measurement result set corresponds to the target time zone. further comprising the step of including the signal measurement result; The step of determining a signal measurement result corresponding to the preset direction through the transmitter may include determining the preset direction indicated by the preset direction information corresponding to the target time zone according to the target time zone; and determining a signal measurement result corresponding to the time zone as a signal measurement result corresponding to the preset direction.

In one exemplary embodiment, when determining a signal measurement result corresponding to the preset direction through the receiving device and positioning the receiving device according to the preset direction and the signal measurement result, through the receiving device Prior to the step of determining a signal measurement result corresponding to the preset direction, the method may receive correspondence information transmitted by the transmitter through the receiver, wherein the correspondence information corresponds to the preset direction and the preset direction. The method further includes a step in which a correspondence relationship between target time zones or the correspondence relationship information is a correspondence relationship between the preset direction and the target pilot signal, and determining a signal measurement result corresponding to the preset direction through the receiving device. The step of doing may include: determining a signal measurement result corresponding to the target time zone as a signal measurement result corresponding to the preset direction when the corresponding relation information corresponds to a correspondence relationship between the preset direction and the target time zone; or determining a signal measurement result corresponding to the target pilot signal as a signal measurement result corresponding to the preset direction when the correspondence relationship is the correspondence relationship between the preset direction and the target pilot signal.

Here, in the above embodiment, when receiving the target pilot signal reflected along the preset direction, the receiving device records a target time zone corresponding to the target pilot signal (eg, a time zone corresponding to the first time slot) and signal measurement on the target pilot signal to obtain a signal measurement result. The signal measurement result may be signal quality, signal field strength level, or signal reception output.

In an exemplary embodiment, the positioning of the receiving device according to the preset direction and the signal measurement result may include: in each preset direction according to the preset direction and the position and height of the electromagnetic reflection surface. The corresponding reflection beam determines the position coordinates (xi, yi) in the target area, and the value of the signal measurement result corresponding to the preset direction is set as the ordinate coordinate (zi) corresponding to the position coordinates (xi, yi) ), wherein i is an identifier of a reflected beam corresponding to the preset direction; and a Gaussian function fitting is performed according to the coordinate range in which the target region is located, the location coordinates (xi, yi), and the corresponding ordinate coordinates (zi) to obtain a fitted Gaussian function, and at the vertices of the fitted Gaussian function and obtaining a positioning result of positioning the receiving device according to the corresponding coordinates.

In one exemplary embodiment, a fitted Gaussian function is obtained by performing Gaussian function fitting according to a coordinate range in which the target region is located, the location coordinates (xi, yi), and the corresponding ordinate coordinate (zi), and the fitting Obtaining a positioning result of positioning the receiving device according to the coordinates corresponding to the vertices of the Gaussian function is obtained by sampling the abscissa range and the ordinate range in which the target area is located according to preset coordinate intervals, respectively, to obtain a set of sampled abscissas and obtaining a set of ordinates; Determine the ordinate coordinates (zw) corresponding to each abscissa (xw) in the set of abscissas from the ordinate coordinates (zi) corresponding to the position coordinates (xi, yi), and determine the ordinate axis corresponding to the position coordinates (xi, yi) Determine the ordinate coordinate zp corresponding to each ordinate yp in the ordinate set from the coordinate zi, wherein w and p are positive integers in the interval [1, n], and n is the number of samples to be sampled. step; Performing one-dimensional Gaussian function fitting according to the set of abscissas and the set of coordinates (xw, zw) composed of the set of ordinates (xw, zw) corresponding to each abscissa (xw) among the set of abscissas to obtain a fitted first Gaussian function; Obtaining a fitted second Gaussian function by performing one-dimensional Gaussian function fitting according to the ordinate set and a coordinate set (yp, zp) composed of ordinate coordinates (zp) corresponding to each ordinate (yp) among the set of ordinates; And determining a first coordinate (xt) corresponding to a vertex of the first Gaussian function and a second coordinate (yt) corresponding to a vertex of the second Gaussian function, and determining the xt and the yt of each of the positioning results determining an abscissa and an ordinate, wherein xt is an abscissa within the abscissa range, and yt is an ordinate within the ordinate range.

For example, the target area is an area where the abscissa is within the range of [xs, xe] and the ordinate is within the range of [ys, ye], xs, xe, ys, ye are all real numbers, and xe>xs, ye > ys, and the abscissa range and the ordinate range where the target region is located are sampled according to preset coordinate intervals to obtain a sampled abscissa set and ordinate set, in the above embodiment, xs≤xw≤xe, ys≤yp <yes; In the obtained positioning result, xs≤xt≤xe and ys≤yt≤ye.

It should be explained that, in the above embodiment, the vertices of the two 1-dimensional Gaussian functions (i.e., the Gaussian function's Determine the coordinates corresponding to the maximum value, which is also the maximum value of the Gaussian curve corresponding to the Gaussian function (i.e., the corresponding input when the Gaussian function is the maximum value), and determine the location coordinates of the receiving device (i.e., the positioning result ).

Here, the ordinate coordinates (zw) corresponding to each abscissa (xw) in the set of abscissas are determined from the ordinate coordinates (zi) corresponding to the position coordinates (xi, yi), and corresponding to the position coordinates (xi, yi) The step of determining the ordinate coordinates (zp) corresponding to each ordinate (yp) in the set of ordinates from the ordinate coordinates (zi) is the ordinate axis corresponding to all position coordinates of which the abscissa is xw among the position coordinates (xi, yi) determining the coordinates, and determining the maximum value of the ordinate coordinates corresponding to all position coordinates of which the abscissa is xw as the ordinate coordinate (zw) corresponding to the abscissa xw; And determining the ordinate coordinates corresponding to all position coordinates in which the ordinate is yp among the position coordinates (xi, yi), and determining the maximum value among the ordinate coordinates corresponding to all position coordinates in which the ordinate is yp, the ordinate coordinate corresponding to the ordinate yp (zp).

It should be noted that, in the above embodiment, through two one-dimensional Gaussian function fitting methods (ie, fitting two one-dimensional Gaussian functions, and each one-dimensional Gaussian function corresponds to one Gaussian curve), the receiving device The location coordinates of can be determined. The coordinates corresponding to the vertices of each Gaussian curve (ie, the maximum value of the Gaussian function corresponding to the Gaussian curve) (ie, the corresponding input when the Gaussian curve is the maximum value) are respectively determined to determine the location coordinates of the receiving device.

In an exemplary embodiment, the positioning of the receiving device according to the preset direction and the signal measurement result may include corresponding to each preset direction according to the preset direction and the position and height of the electromagnetic reflection surface. The reflected beam determines the position coordinates (xi, yi) in the target area, and determines the value of the signal measurement result corresponding to the preset direction as the ordinate coordinate (zi) corresponding to the position coordinate, i is an identifier of a reflected beam corresponding to the preset direction; Obtaining a fitted 2D Gaussian function by fitting a 2D Gaussian function according to a set of coordinates (xi, yi, zi) composed of the positional coordinates (xi, yi) and the ordinate coordinates (zi); And determining the coordinates (xt, yt) corresponding to the vertices of the two-dimensional Gaussian function, and determining the coordinates (xt, yt) as a positioning result obtained by positioning the receiving device, where xt is the location of the target area is an abscissa within an abscissa range, and yt is an ordinate within an ordinate range where the target region is located.

For example, if the abscissa range corresponding to the target area is [xs, xe] and the ordinate range is [ys, ye], but xs, xe, ys, ye are all real numbers, and xe>xs, ye>ys , xs≤xt≤xe, ys≤yt≤ye in the obtained positioning result.

It should be explained that, in the above embodiment, the location coordinates of the receiving device may be determined through a two-dimensional Gaussian function fitting method (ie, fitting of a Gaussian surface). Here, the fitting can be implemented using the least square method and the least mean square error method.

In one exemplary embodiment, after determining a signal measurement result corresponding to the preset direction through the transmitting device, and positioning the receiving device according to the preset direction and the signal measurement result, the method comprises: Determine target direction information according to a positioning result obtained by positioning the receiving device through the transmitting device, wherein the target direction information is determined by the electromagnetic reflecting surface control unit for each electromagnetic unit of the electromagnetic reflecting surface according to the target direction information. and instructing to control a reflection coefficient so that a reflected beam formed on the electromagnetic reflection surface by a frequency signal transmitted by the transmitting device is directed toward the receiving device.

Here, after determining the target direction information, the transmission device transmits the target direction information to the electromagnetic reflective surface control unit so that the electromagnetic reflective surface control unit reflects each electromagnetic unit of the electromagnetic reflective surface according to the target direction information. Instructs to control a coefficient so that a reflected beam formed on the electromagnetic reflection surface by a frequency signal is directed toward the receiving device.

In one exemplary embodiment, after determining a signal measurement result corresponding to the preset direction through the receiving device, and positioning the receiving device according to the preset direction and the signal measurement result, the method comprises: Determine target direction information according to a positioning result obtained by positioning the receiving device through the receiving device, wherein the target direction information is determined by the electromagnetic reflecting surface control unit for each electromagnetic unit of the electromagnetic reflecting surface according to the target direction information. and instructing to control a reflection coefficient so that a reflected beam formed on the electromagnetic reflection surface by a frequency signal transmitted by the transmitting device is directed toward the receiving device.

Here, after determining the target direction information, the receiving device transmits the target direction information to a transmitting device, and the transmitting device transmits the target direction information to the electromagnetic reflective surface control unit so that the electromagnetic reflective surface control unit transmits the target direction information to the target direction information. Instruct to control the reflection coefficient of each electromagnetic unit of the electromagnetic reflection surface according to direction information so that a reflected beam formed on the electromagnetic reflection surface by a frequency signal is directed toward the receiving device.

Hereinafter, the positioning method of the receiving device in the above embodiments will be interpreted and described based on an example, but the technical solutions in the embodiments of the present application are not limited.

In the related art, using a smart metasurface (also referred to as a smart electromagnetic reflective surface, i.e., an electromagnetic reflective surface in the above embodiments) is a very effective and low-cost method to enhance the coverage of a non-direct path area of a mobile network. . The present application provides a related method to achieve accurate alignment of the target beam direction by using the characteristics of the smart electromagnetic reflective surface itself, so that the distribution scheme of the smart electromagnetic reflective surface is complete; In addition, in the non-direct path area with enhanced smart electromagnetic metasurface coverage, accurate positioning of the terminal location is implemented. That is, in the embodiments of the present application, the distribution of smart electromagnetic reflective surfaces is used to implement positioning of non-direct path terminals through a single base station.

In the embodiments of the present application, the following nodes are mainly involved.

The transmitting device is configured to determine a beam scan plan, generate a pilot sequence (ie, a pilot signal in the embodiment) based on the beam scan plan, and transmit the generated pilot sequence to a radio frequency unit of the transmitting device, wherein the determination of the beam scan plan comprises: This refers to a process in which a transmitting device performs mesh partitioning or target beam directing planning for a target area and converts a 2D space domain plan of the target area into a 1D time domain plan. For example, the transmitting device determines each mesh corresponding to the timing (the timing is the timing information of the embodiment) according to the scan order of the mesh (ie, the sub-region of the above embodiment) in the target region, and determines each mesh for each mesh. This means determining corresponding preset direction information. That is, in the above embodiment, each piece of preset direction information has a corresponding target time zone. The radio frequency unit of the transmitting device directs the frequency beam of the transmitting device to the smart electromagnetic reflective surface through beam adjustment control (ie, adjusts the beam to align with the smart electromagnetic reflective surface), modulates the received pilot sequence, and transmits the received pilot sequence. do.

It should be noted that, in the above embodiment, the pilot sequence transmitted by the transmitting device is a coding sequence known to both the transmitting device and the receiving device in advance, the coding sequence has good autocorrelation and cross-correlation characteristics, and the receiving device may measure radio signal quality or strength based on the pilot sequence. In an exemplary embodiment, the transmitting device transmits a specific pilot sequence to the transmitting device radio frequency unit within a preset time window, and within the time window, the content of the pilot sequence may be the same or a coding sequence that varies with time. can Here, when pilot sequences with different time divisions are used, the time window is divided into sections, and each section in the time window may correspond to a partitioned pilot sequence, and the pilot sequence corresponds to preset direction information in adjustment control information. That is, the pilot signal and the target beam adjustment and control direction of the smart electromagnetic reflection surface (i.e., the preset direction in the above embodiment) are synchronized and corresponding. the preset time window is a time window between the start time of the beam steering control and the end time of the beam steering control; In an exemplary embodiment, the transmitting device also transmits a beam steering start time and a beam steering end time to the receiving device.

The transmitting device is further configured to control the smart reflective surface through the smart reflective surface control unit, that is, control the beam direction of the smart reflective surface, and scan the target area with the reflected beam formed by the smart reflective surface.

The step of controlling the smart reflective surface through the smart reflective surface control unit, that is, the step of controlling the beam direction of the smart reflective surface, includes the adjustment and control information provided by the transmitting device through an interface between the transmitting device and the smart reflective surface control unit. to the smart reflective surface control unit, and the adjustment control information includes a beam steering control start time, a beam steering control direction, a target reflection coefficient of each electromagnetic unit, an input parameter for determining a target reflection coefficient of each electromagnetic unit, timing information, It includes, but is not limited to, a beam steering control end time, and the like. Here, the adjustment control information may be a beam target to be adjusted, or may be an adjustment control command for each electromagnetic unit of the smart electromagnetic reflective surface, and when these commands are applied to the smart electromagnetic unit, the electromagnetic unit of the smart electromagnetic reflective surface has a reflection coefficient (input reflection). coefficient) so that the main beam reflected from the electromagnetic reflection surface has a different target direction (i.e., the preset direction) can be directed.

The receiving device measures and records the quality of the radio signal of a specific pilot or each pilot in a pilot group within a time period (ie, the time period between the start time of beam steering control and the end time of beam steering control), that is, the receiving device Within a preset time window, measure the signal quality of all pilot signals received based on a known pilot sequence or pilot sequence group or the signal quality of some pilot signals among all pilot signals, and record the target time period corresponding to each signal quality That is, the signal measurement result set constituted by the signal measurement result recorded by the receiving device is each wireless signal quality (ie, the signal measurement result set is one time sequence data) arranged in the order of time, and the signal measurement result The set corresponds to the beam adjustment control timing of the smart electromagnetic reflective surface (that is, the timing information configured by the target time zone corresponding to each signal measurement result in the signal measurement result set coincides with the timing information for controlling the electromagnetic reflective surface) .

The transmitting device or the receiving device is further configured to perform estimation of a target beam direction and positioning of the receiving device based on a measurement result of the receiving device (ie, a signal measurement result in the above embodiment).

The step of estimating the target beam direction and positioning the receiving device based on the measurement result of the receiving device includes the following steps: In step (1), the measurement result of the receiving device and the smart electromagnetic reflection surface determine the wireless signal quality measured by the terminal when the main steering beam is directed in different directions on the smart electromagnetic reflection surface according to the beam steering timing; In step (2), the location of the terminal and the direction of the target beam are estimated based on the radio signal quality in different directions of the main steering control beam. Here, the specific implementation of step (2) may be performed in the receiving device or the transmitting device.

When step (2) is performed in the receiving device, the transmitting device provides the receiving device with a corresponding relationship between a beam direction and a target time zone or a corresponding relationship between a related beam direction and a pilot sequence, and the corresponding relationship is a public channel or a telecommunications message. can be transmitted over a channel. When step (2) is carried out in the transmitting device, the receiving device reports related measurement results to the transmitting device, so that the transmitting device can obtain a set of beam directions of each smart electromagnetic reflective surface and radio signal quality measured by the terminal; , the radio signal quality may be an original measurement result or a result after quantization coding.

When positioning the terminal position, one-dimensional time data can be converted into two-dimensional spatial data based on the direction of the smart electronic surface beam and related measurement results, for example, a two-dimensional surface fitting algorithm (ie, two-dimensional Gaussian Function fitting is performed to obtain a fitted 2D Gaussian function, and the 2D Gaussian function corresponds to a Gaussian surface) to determine the location of the terminal. The two-dimensional surface fitting algorithm is a method such as a two-dimensional Gaussian distribution surface, least square method, least mean square error method, or a method of fitting a Gaussian curve reduced to two independent one-dimensional dimensions (ie, each in the X direction and Y direction Proceed with one-dimensional Gaussian function fitting of to obtain two fitted one-dimensional Gaussian functions, each one-dimensional Gaussian function corresponding to one Gaussian curve), but is not limited thereto.

4 is a schematic plan view of a deployment scenario of a smart electromagnetic reflective surface according to an embodiment of the present application, showing a beam scan area (ie, a target area in the embodiment) and a smart electromagnetic reflective surface (ie, the electromagnetic reflective surface in the embodiment) did In one example application scenario of the present application,

Each distribution parameter of the sending device is as follows:

The antenna of the transmitting device (i.e., the radio frequency unit) is mounted on top of a building with a suspension height of 43 m (i.e., the height of the antenna position of the transmitting device is 43 m);

Coordinates of the center point of the radio frequency transmitting unit of the transmitting device: [0, 0, 43] (unit is meter: m);

horizontal orientation angle (Az) = 120 degrees;

elevation angle (EL)=10 degrees;

Rotation angle (SL) = 0 degree.

Each distribution parameter of the smart electromagnetic reflective surface is as follows:

Position of the central point of the smart electromagnetic reflection surface: [21.67, 133.2, 36.2] (unit is m, that is, the position and height of the metasurface in the above embodiment);

horizontal orientation angle (Az) = -60 degrees;

lift angle (EL)=0 degree;

Rotation angle (SL) = 0 degrees.

Here, the parameter configuration of the transmitting device and the smart electromagnetic reflective surface is as follows:

carrier frequency (Fc) = 28 GHz;

Polarization: vertical polarization;

Base Station Effective Isotropically Radiated Power (EIRP) = 43dBM;

The size of the smart electromagnetic reflective surface: length 20λ≠ width 20λ, where λ is the wavelength of the carrier frequency;

Smart electromagnetic reflective surface control unit size: length λ/3 × width λ/3;

Smart Electromagnetic Reflector Phase Control Granularity: 2-bits (i.e. 4 selectable phases: [0, π/2, π, 3π/2] (unit: radians) by indicating the phase of the megasurface using 2 bits ) is present;

Sub-Carrier Space (SCS): 30 kHz;

radio frame length: 10 ms;

Number of time slots in each radio frame: 20;

How often the transmitting device sets the scan beam: each time slot.

When the positioning accuracy of the positioning method of the receiving device in the embodiment of the present application is tested, the position coordinates in the target area refer to the receiving device at the position of [68, 88] (unit m), and in the embodiment of the present application The positioning accuracy of the positioning method is tested.

In an embodiment of the present application, the positioning method includes the following steps:

Step 1: The transmitting device determines a beam scan plan, the first time slot (the time slot corresponding to the first time slot is the first target time slot, and the start time of the first target time slot is also equal to the beam adjustment control start time in the above embodiment). corresponding) to the 180th time slot (i.e., the 180th target time slot, which is also the last target time slot in the timing information, and the end time of the last target time slot also corresponds to the beam adjustment control end time of the embodiment) FIG. 4 beam scan of the beam scan area (ie, the target area in the above embodiment), the transmitter generates a pilot sequence and transmits it to the radio frequency unit.

Step 2: The adjusting beam of the radio frequency unit of the transmitting device aligns the smart electromagnetic reflection surface, modulates the received pilot sequence, and transmits it.

Step 3: The transmitting device controls the beam direction of the smart reflective surface through the smart reflective surface control unit, and the frequency at which the smart reflective surface beam scan direction is updated is each time slot, in which time slot the reflected beam is Upon reaching the beam scan area along the preset direction, the beam aligns to the next new preset direction (ie, the preset direction in the above embodiment) after each update.

Step 4: In an exemplary embodiment, the transmitting device transmits the beam steering start time and the beam steering end time to the receiving device, and the receiving device sends the corresponding time period (ie, from the beam steering start time to the beam steering end time). The radio pilot signal quality is measured and recorded within the time zone), and the results are as shown in FIG. 5. 5 shows signal reception strength obtained by measuring the target pilot signal transmitted by the transmitter and received by the receiver, and the horizontal axis represents each time slot arranged in order. Since each time slot has a certain length of time, each time slot corresponds to one time slot (that is, the target time slot of the above embodiment), for example, when the time slot length is a (ms), k of the timing information The target time zone (i.e., the time zone corresponding to the k-th time slot) is a time zone between t0 + (k-1)a and t0 + ka, t0 is the beam steering control start time (ms), and k is greater than 1 or is the same integer.

Step 5: Based on the received measurement result, estimation of the target beam direction and positioning of the receiving device are performed.

Here, when performing positioning of the receiving device, in this embodiment, the receiving device reports the measurement original result within one measurement period to the transmitting device, and the format of the report content is as follows: (where slotNo is the time slot number ( time slot), that is, each target time zone in the above embodiment is displayed, and PxPwr indicates the reception level, that is, signal measurement results are displayed in the above embodiment)

slotNo 1: PxPwr-130;

slotNo 51: PxPwr-86.5;

slotNo 52: PxPwr-91.61;

slotNo 53: PxPwr-83.66;

slotNo 54: PxPwr-75.13;

slotNo 55: PxPwr-73.55;

slotNo 56: PxPwr-75.06;

slotNo 57: PxPwr-87.31;

…

The transmitting device maps the time slot number (i.e., the corresponding time slot, that is, the target time slot corresponding to the time slot) to the target beam direction, and the position of the center of the smart electromagnetic reflective surface and the suspension height (i.e., the electromagnetic reflective surface of the above embodiment). height of the reflective surface), converts the 1-dimensional time data of FIG. 6 into 2-dimensional space data (FIG. 7), and at the same time maps the measurement result to the ground in the beam scan area (see FIG. 8, FIG. 8 is FIG. 7, top view). Here, the abscissa axis and the ordinate axis of FIG. 6 indicate the abscissa of the target area and the coordinates of the target area, respectively, and each point ”.” in FIG. The number next to it indicates the time slot number (the time slot number also indicates the time slot corresponding to the time slot number), for example, in the two marks .31 and .47 in the second row of FIG. 6, “ 37” and “47” indicate that corresponding time slot numbers are 31 and 47, respectively, and according to FIG. 6, position coordinates corresponding to each time slot number can be determined. The abscissa and ordinate axes of FIG. 7 indicate the abscissa of the target area and the coordinates of the target area, respectively, and each dot “.” in FIG. 8 indicates that the received signal quality exists, and the specific size of the received signal quality is shown in FIG. It is indicated on the ordinate axis. The representation "predicted position of the receiving device" in the drawing is a positioning result obtained by positioning the receiving device (ie, coordinates in the positioning result).

The X and Y coordinates of the receiving device are separately estimated using the dimensionality reduction method, and specifically as follows:

Based on the direction of each beam of the smart reflective surface and the suspension height of the smart reflective surface, the position [xi, yi] of each beam on the ground is determined, where i is a beam identifier and corresponds to a time slot number in this embodiment.

Based on the data of FIGS. 6 and 7 , data dimension reduction is performed along two directions of the X axis and the Y axis.

(1) Section division is performed in the X-axis direction (ie, section division is performed in the abscissa), each interval interval is 2, and the set of coordinates corresponding to the center points of all intervals is [62, 64 , 66, … , 80] (ie, the set of abscissas in the above embodiment);

(2) Section division is performed in the Y-axis direction (ie, section division is performed for the ordinate), each interval interval is 2, and the set of coordinates corresponding to the center points of all intervals is [80, 82 , 84,... ,110] (ie, the set of ordinates in the above embodiment);

(3) For all two-dimensional data, a set composed of coordinates corresponding to the center point of each section of the X axis [62, 64, 66, ... , 80], determining the dimensionality reduction reception level corresponding to the coordinates of each center point (in one exemplary embodiment, determining the strongest radio signal reception quality in each interval as the only dimensionality reduction reception level of the interval, That is, for a coordinate (xw) of a certain central point, the maximum value (ie, zw) of the radio signal reception quality (ie, reception level) corresponding to the coordinate (xw) is determined), the result is as follows:

[62, PxPwrx1;

64, PxPwrx2;

66, PxPwrx3;

… ,;

80, PxPwrx10]

The obtained set of coordinates in the X-axis direction and corresponding radio signal quality are each actual measurement data shown in FIG. 9 .

(4) For all two-dimensional data, according to the result of dividing the sections in the Y direction, the wireless signal quality is assigned to each section, and the set of coordinates of the center point of each section on the Y axis is: [80, 82, 84 ,… , 110], and determines the unique dimensionality reduction reception level of the section according to the strongest radio signal reception quality of each section (ie, for each ordinate (yp) in the ordinate set, the ke corresponding to the yp is determined ; The specific decision method is similar to the processing method in the X-axis direction above), and the results are as follows:

[80, PxPwry1;

82, PxPwry2;

84, PxPwry3;

… ,;

110, PxPwry16]

The acquired coordinate set in the Y-axis direction and the corresponding wireless signal quality are each actual measurement data shown in FIG. 10 .

(5) Positioning result and error

A one-dimensional Gaussian function is selected as a fitting curve, and a one-dimensional Gaussian function is fitted in the X direction and the Y direction respectively (ie, a one-dimensional Gaussian function is obtained by fitting each); In one exemplary embodiment, parameters of a one-dimensional Gaussian function (ie, one-dimensional Gaussian function, see the fitting result of FIG. 9) corresponding to each X direction using least squares fitting and the x coordinates corresponding to the vertices ( That is, determine xt) of the above embodiment; Using least squares fitting, parameters of a one-dimensional Gaussian function corresponding to the Y direction (ie, one-dimensional Gaussian function, see the fitting result of FIG. 10) and the y coordinate corresponding to the vertex (ie, yt in the above embodiment) Decide. The position coordinates of the receiving device determined according to the positioning method according to the embodiment of the present application are: [68.3963, 88.3110] m, and the positioning error with the real coordinate position [68, 88] of the reference target receiving device is 0.50378 m. Therefore, a relatively accurate positioning result can be obtained using the positioning method of the embodiment of the present application.

In another embodiment of the present application, the positioning accuracy of the positioning method of the embodiment of the present application is tested with reference to a receiving device whose position coordinates are [64, 102] (unit m) in the target area. In an embodiment of the present application, the positioning method includes the following steps:

Step 1: the transmitting device determines a beam scan plan; From the first time slot to the 180th time slot, the beam scan of the relevant area in FIG. 4 is performed, and the transmitter generates a pilot sequence and transmits it to the radio frequency unit.

Step 2: The radio frequency unit steer beam aligns the smart electromagnetic reflector, modulates and transmits the received pilot sequence.

Step 3: The transmitting device controls the beam direction of the smart reflective surface through the smart reflective surface control unit, and the frequency of updating the beam scan direction is each time slot, and after each update, the beam aligns with the next new preset direction. do.

Step 4: The receiving device measures and records the radio pilot signal quality within a corresponding time period, and the results are shown in FIG. 11.

Step 5: Based on the measurement result of the transmitting device, estimation of the target beam direction and positioning of the terminal are performed.

Here, the receiving device reports the measurement original result within one measurement period to the transmitting device, and the form of the report content is the new time slot number and the corresponding signal measurement result (the specific form is the same as the form of the report content in the above embodiment). ).

Step 6: The transmitting device maps the time slot number to the target beam direction, and combines it with the smart electromagnetic reflective surface center position and suspension height to obtain one-dimensional time data (i.e., a radio signal corresponding to the time slot shown in FIG. 12). quality) into the two-dimensional space data shown in FIG. 13, and at the same time, the measurement result is mapped to the ground of the beam scan area (ie, a plan view corresponding to FIG. 13, ie, FIG. 14 is obtained).

Step 7: The X and Y coordinates of the receiving device are separately estimated using the dimension reduction method, and the estimation results are shown in FIGS. 15 and 16, respectively.

Step 8: Positioning Results and Errors.

Select a one-dimensional Gaussian function as a fitting curve, and determine the parameters of the one-dimensional Gaussian function in the X and Y directions respectively using least squares fitting for the X and Y directions, respectively, at the vertices of the Gaussian curve in the X direction The corresponding abscissa is the abscissa of the positioning result (i.e. xt), and the ordinate corresponding to the vertices of the Gaussian curve in the Y direction is the ordinate of the positioning result (i.e. yt); The fitting results may refer to FIGS. 15 and 16 , respectively.

The positioning result obtained in the embodiment of the present application is: [63.8170, 100.6145] m, and the positioning error with the real coordinate position of the reference receiving device is 1.3975 m.

Through the above description of the implementation method, those skilled in the art can clearly see that the method according to the above embodiment can be implemented by means of software and a necessary general hardware platform, and can also be implemented through hardware, but the former is more This is a preferred practice. Based on this understanding, the technical solutions of the present application essentially or the contribution compared to the prior art may be implemented in the form of a software product, and the computer software product is a storage medium (eg, ROM / RAM) , a magnetic disk, an optical disk), and includes some commands so that one terminal device (which may be a mobile phone, computer, server, network device, etc.) performs the method described in each embodiment of the present application.

This embodiment further provides a positioning device of the receiving device, and the device is for implementing the above embodiments and preferred embodiments, and the already described parts are omitted. The term "module" used below is a combination of software and/or hardware capable of implementing preset functions. The devices described in the following embodiments are preferably implemented in software, but implementation in hardware or a combination of software and hardware is also possible and conceivable.

17 is a structural block diagram of a positioning device of a receiving device according to an embodiment of the present application. As shown in FIG. 17, the positioning device includes:

a transmission module 211 for transmitting a pilot signal to the electromagnetic reflection surface through the transmission device;

The adjustment and control information is transmitted to the electromagnetic reflection surface control unit through the transmitting device, wherein the adjustment and control information includes timing information and adjustment and control direction information, and the adjustment and control information is transmitted by the electromagnetic reflection surface control unit to the target time zone. A pilot signal is used to instruct a reflected beam formed on the electromagnetic reflection surface to be directed in a preset direction, wherein the preset direction is a direction indicated by preset direction information corresponding to the target time zone, and the preset direction is directed to a target area, the timing information includes the target time zone, the adjustment control direction information includes the preset direction information, and the pilot signal transmitted through the transmitter includes the target pilot signal. coordination control module 213; and

A signal measurement result corresponding to the preset direction is determined through the transmitter or receiver, and the receiver is positioned according to the preset direction and the signal measurement result, wherein the signal measurement result is located in the target area. and a positioning module 215, which is a result obtained by measuring the target pilot signal reflected along the preset direction received by the receiving device.

Through this application, a pilot signal is transmitted to an electromagnetic reflection surface through a transmitting device; The adjustment and control information is transmitted to the electromagnetic reflection surface control unit through the transmitting device, wherein the adjustment and control information includes timing information and adjustment and control direction information, and the adjustment and control information is transmitted by the electromagnetic reflection surface control unit to the target time zone. A pilot signal is used to instruct a reflected beam formed on the electromagnetic reflection surface to be directed in a preset direction, wherein the preset direction is a direction indicated by preset direction information corresponding to the target time zone, and the preset direction is directed to a target area, the timing information includes the target time zone, the adjustment and control direction information includes the preset direction information, and a pilot signal transmitted through the transmitter includes the target pilot signal. ; A signal measurement result corresponding to the preset direction is determined through the transmitter or receiver, and the receiver is positioned according to the preset direction and the signal measurement result, wherein the signal measurement result is located in the target area. is a result obtained by measuring the target pilot signal reflected along the preset direction received by the receiving device. Therefore, it is possible to solve the technical problem of the related art in which the positioning of the terminal cannot be performed using the characteristics of the electromagnetic reflection surface itself, thereby achieving the effect of positioning the terminal using the characteristics of the electromagnetic reflection surface itself.

In an exemplary embodiment, the device further includes a first determining module, configured to determine the adjustment control information according to the target region via the sending device; The first determination module further determines a plurality of preset direction information according to a plurality of sub-regions obtained by partitioning the target region, and determines a plurality of target time zones according to the plurality of preset direction information; Each of the preset direction information corresponds to each sub-area of the plurality of sub-areas on a one-to-one basis, the timing information includes a plurality of the target time zones, and each of the target time zones corresponds to each of the preset direction information and matched one-to-one; or determine a plurality of preset directions configured to direct the target area, determine each preset direction information as one preset direction among the plurality of preset directions, and determine the plurality of preset direction information A plurality of target time zones are determined according to the method, wherein the timing information includes a plurality of target time zones, and each of the target time zones is configured to correspond to each of the preset direction information on a one-to-one basis.

In an exemplary embodiment, the device determines a target reflection coefficient according to the preset direction information via the electromagnetic reflection surface control unit; adjusting a reflection coefficient of each electromagnetic unit of the electromagnetic reflection surface to the target reflection coefficient through the electromagnetic reflection surface control unit to form a reflected beam in the preset direction on the electromagnetic reflection surface; The control module is configured to adjust the reflection coefficient of each electromagnetic unit to include at least one of a width, a phase, and a polarization.

In an exemplary embodiment, the device may, when the preset direction information is a target reflection coefficient of each electromagnetic unit corresponding to the preset direction, via the electromagnetic reflective surface control unit for each electromagnetic unit of the electromagnetic reflective surface. adjusting a reflection coefficient of the target reflection coefficient to form a reflection beam in the preset direction on the electromagnetic reflection surface, wherein the reflection coefficient of each electromagnetic unit includes at least one of a width, a phase, and a polarization. contains more modules.

In an exemplary embodiment, the device determines a target reflection coefficient according to the input parameter via the electromagnetic reflective surface control unit when the preset direction information is an input parameter corresponding to the preset direction; A reflection coefficient of each electromagnetic unit of the electromagnetic reflection surface is adjusted to the target reflection coefficient to form a reflection beam in the predetermined direction on the electromagnetic reflection surface, wherein the input parameter determines the target reflection coefficient, and each electromagnetic The unit further includes an adjusting module configured to include at least one of a width, a phase, and a polarization of a reflection coefficient.

In an exemplary embodiment, the adjustment and control information further includes one of a beam adjustment and control start time and a beam adjustment and control end time, wherein the beam adjustment and control start time is the start time of the beam adjustment and control by the electromagnetic reflection surface control unit. is used for instructing to start controlling each electromagnetic unit of the electromagnetic reflection surface to control a reflected beam direction of the electromagnetic reflection surface at a time; The beam adjustment control end time instructs the electromagnetic reflection surface control unit to end control of each electromagnetic unit of the electromagnetic reflection surface at the beam adjustment control end time.

In an exemplary embodiment, the positioning module 215 further determines a signal measurement result corresponding to the preset direction through the transmitting device, and positions the receiving device according to the preset direction and the signal measurement result. In this case, receive a measurement result set transmitted by the receiving device through the transmitting device, wherein the measurement result set includes a signal measurement result corresponding to the target time zone; Determining the signal measurement result corresponding to the preset direction through the transmitter determines the preset direction indicated by the preset direction information corresponding to the target time zone according to the target time zone, and and determining a signal measurement result corresponding to the signal measurement result corresponding to the preset direction.

In an exemplary embodiment, the positioning module 215 may also determine a signal measurement result corresponding to the preset direction through the receiving device, and select the receiving device according to the preset direction and the signal measurement result. In the case of positioning, prior to determining a signal measurement result corresponding to the preset direction through the receiving device, receive correspondence information transmitted by the transmitting device through the receiving device, wherein the corresponding relationship information is configured to: a correspondence relationship between a preset direction and the target time zone, or the correspondence information is a correspondence relationship between the preset direction and the target pilot signal; Determining the signal measurement result corresponding to the preset direction through the receiving device determines the signal measurement result corresponding to the target time zone when the correspondence relationship information corresponds to the preset direction and the target time zone. Determined by the signal measurement result corresponding to the setting direction; or determining a signal measurement result corresponding to the target pilot signal as a signal measurement result corresponding to the preset direction when the correspondence relationship is the correspondence relationship between the preset direction and the target pilot signal.

In an exemplary embodiment, the positioning module 215 further configures the reflected beam corresponding to each preset direction in the target area according to the preset direction and the position and height of the electromagnetic reflection surface. Determine the location coordinates (xi, yi), and determine the value of the signal measurement result corresponding to the preset direction as the vertical axis coordinate (zi) corresponding to the location coordinates (xi, yi), wherein i is the preset an identifier of the reflected beam corresponding to the direction; Obtain a fitted Gaussian function by performing Gaussian function fitting according to the coordinate range in which the target region is located, the positional coordinates (xi, yi), and the corresponding ordinate coordinates (zi), and correspond to the vertices of the fitted Gaussian function It is configured to obtain a positioning result of positioning the receiving device according to the coordinates to be.

In an exemplary embodiment, the positioning module 215 further samples an abscissa range and an ordinate range in which the target region is located according to a preset coordinate interval, respectively, to obtain a sampled set of abscissa coordinates and a set of ordinate coordinates; Determine the ordinate coordinates (zw) corresponding to each abscissa (xw) in the set of abscissas from the ordinate coordinates (zi) corresponding to the position coordinates (xi, yi), and determine the ordinate axis corresponding to the position coordinates (xi, yi) Determine the ordinate coordinate (zp) corresponding to each ordinate (yp) in the set of ordinates from the coordinate (zi), wherein w and p are positive integers in the interval [1, n], and n is the number of samples to be sampled. is; Performing one-dimensional Gaussian function fitting according to the set of abscissas and the set of coordinates (xw, zw) composed of the set of ordinates (xw, zw) corresponding to each abscissa (xw) among the set of abscissas to obtain a fitted first Gaussian function; Obtaining a fitted second Gaussian function by performing one-dimensional Gaussian function fitting according to the coordinate set (yp, zp) composed of the ordinate set and the ordinate coordinates (zp) corresponding to each ordinate (yp) among the set of ordinates; A first coordinate (xt) corresponding to the vertex of the first Gaussian function and a second coordinate (yt) corresponding to the vertex of the second Gaussian function are determined, and the xt and the yt are respectively the abscissas of the positioning results Wherein xt is an abscissa within the range of the abscissa, and yt is an ordinate within the range of the ordinate.

In an exemplary embodiment, the positioning module 215 further determines the position of the reflected beam corresponding to each preset direction in the target area according to the preset direction and the position and height of the electromagnetic reflection surface. Determine the coordinates (xi, yi), and determine the value of the signal measurement result corresponding to the preset direction as the vertical axis coordinate (zi) corresponding to the position coordinate, wherein i is the reflected beam corresponding to the preset direction is an identifier of; obtaining a fitted 2D Gaussian function by fitting a 2D Gaussian function according to a set of coordinates (xi, yi, zi) composed of the positional coordinates (xi, yi) and the ordinate coordinates (zi); Determine the coordinates (xt, yt) corresponding to the vertices of the two-dimensional Gaussian function, and determine the coordinates (xt, yt) as a positioning result obtained by positioning the receiving device, wherein the xt is the target area is an abscissa within a range of abscissas where the target region is located, and yt is an ordinate within a range of ordinates where the target region is located.

In one exemplary embodiment, the device determines a signal measurement result corresponding to the preset direction through the transmitter, and positions the receiver according to the preset direction and the signal measurement result, and then the Determine target direction information according to a positioning result obtained by positioning the receiving device through a transmitting device, wherein the target direction information is reflected by each electromagnetic unit of the electromagnetic reflecting surface according to the target direction information by the electromagnetic reflecting surface control unit. and a second determining module, configured to instruct to control a coefficient so that a reflected beam formed on the electromagnetic reflection surface by a frequency signal transmitted by the transmitting device is directed toward the receiving device.

In one exemplary embodiment, the device determines a signal measurement result corresponding to the preset direction through the receiving device, and positions the receiving device according to the preset direction and the signal measurement result, and then the Determine target direction information according to a positioning result obtained by positioning the receiving device via a receiving device, wherein the target direction information is reflected by each electromagnetic unit of the electromagnetic reflecting surface according to the target direction information by the electromagnetic reflecting surface control unit. and a second determining module, configured to instruct to control a coefficient so that a reflected beam formed on the electromagnetic reflection surface by a frequency signal transmitted by the transmitting device is directed toward the receiving device.

This embodiment further provides a positioning system for a receiving device, and the system implements the above embodiments and preferred embodiments, and the descriptions are omitted. The system includes a transmitting device, an electromagnetic reflecting surface control unit, an electromagnetic reflecting surface and a receiving device, wherein the transmitting device transmits a pilot signal to the electromagnetic reflecting surface and transmits adjustment and control information to the electromagnetic reflecting surface control unit; The adjustment and control information includes timing information and adjustment and control direction information, and the adjustment and control information causes the electromagnetic reflection surface control unit to direct a reflected beam formed on the electromagnetic reflection surface by a target pilot signal to a preset direction in a target time period. wherein the preset direction is a direction indicated by preset direction information corresponding to the target time zone, the preset direction is directed toward a target area, the timing information includes the target time zone, and the adjustment control direction information includes the preset direction information, and the pilot signal transmitted through the transmitter includes the target pilot signal; the electromagnetic reflection surface control unit is configured to direct a reflected beam formed on the electromagnetic reflection surface by the target pilot signal to the preset direction in the target time period according to the adjustment control information; the receiving device is configured to obtain a measurement result by measuring the received target pilot signal reflected along the predetermined direction, wherein the receiving device is located in the target area; The transmitting device or the receiving device is further configured to determine a signal measurement result corresponding to the preset direction, and position the receiving device according to the preset direction and the signal measurement result corresponding to the preset direction.

Through this application, a pilot signal is transmitted to an electromagnetic reflection surface through a transmitting device; The adjustment and control information is transmitted to the electromagnetic reflection surface control unit through the transmitting device, wherein the adjustment and control information includes timing information and adjustment and control direction information, and the adjustment and control information is transmitted by the electromagnetic reflection surface control unit to the target time zone. A pilot signal is used to instruct a reflected beam formed on the electromagnetic reflection surface to be directed in a preset direction, wherein the preset direction is a direction indicated by preset direction information corresponding to the target time zone, and the preset direction is directed to a target area, the timing information includes the target time zone, the adjustment and control direction information includes the preset direction information, and a pilot signal transmitted through the transmitter includes the target pilot signal. ; A signal measurement result corresponding to the preset direction is determined through the transmitter or receiver, and the receiver is positioned according to the preset direction and the signal measurement result, wherein the signal measurement result is located in the target area. is a result obtained by measuring the target pilot signal reflected along the preset direction received by the receiving device. Therefore, it is possible to solve the technical problem of the related art in which the positioning of the terminal cannot be performed using the characteristics of the electromagnetic reflection surface itself, thereby achieving the effect of positioning the terminal using the characteristics of the electromagnetic reflection surface itself.

In an exemplary embodiment, the sending device is further configured to determine the coordination information according to the target area, wherein the sending device determines the moderation information according to the target area in the following way: A plurality of preset direction information is determined according to a plurality of sub-regions obtained by partitioning the target region, and a plurality of target time zones are determined according to the plurality of preset direction information, each of the preset direction information and Each sub-area of the plurality of sub-areas corresponds one-to-one, the timing information includes a plurality of the target time zones, and each of the target time zones corresponds to each of the preset direction information on a one-to-one basis; or determine a plurality of preset directions configured to direct the target area, determine each preset direction information as one preset direction among the plurality of preset directions, and determine the plurality of preset direction information A plurality of target time zones are determined according to the method, wherein the timing information includes a plurality of target time zones, and each target time zone corresponds to each preset direction information on a one-to-one basis.

In an exemplary embodiment, the electromagnetic reflection surface control unit further determines a target reflection coefficient according to the preset direction information; adjusting a reflection coefficient of each electromagnetic unit of the electromagnetic reflection surface to the target reflection coefficient to form a reflected beam in the preset direction on the electromagnetic reflection surface; A reflection coefficient of each electromagnetic unit is configured to include at least one of width, phase, and polarization.

In an exemplary embodiment, the electromagnetic reflective surface control unit further configures, when the predetermined direction information is a target reflection coefficient of each electromagnetic unit corresponding to the predetermined direction, a reflection coefficient of each electromagnetic unit of the electromagnetic reflective surface. is adjusted to the target reflection coefficient to form a reflected beam in the predetermined direction on the electromagnetic reflection surface, wherein the reflection coefficient of each electromagnetic unit includes at least one of a width, a phase, and a polarization.

In an exemplary embodiment, the electromagnetic reflective surface control unit further, when the preset direction information is an input parameter corresponding to the preset direction, determines a target reflection coefficient according to the input parameter; Adjust the reflection coefficient of each electromagnetic unit in the target reflection coefficient to form a reflected beam in the preset direction on the electromagnetic reflection surface, the input parameter determining the target reflection coefficient, and the reflection coefficient of each electromagnetic unit The coefficient is configured to include at least one of width, phase, and polarization.

In an exemplary embodiment, the adjustment and control information further includes one of a beam adjustment and control start time and a beam adjustment and control end time, wherein the beam adjustment and control start time is the start time of the beam adjustment and control by the electromagnetic reflection surface control unit. is used for instructing to start controlling each electromagnetic unit of the electromagnetic reflection surface to control a reflected beam direction of the electromagnetic reflection surface at a time; The beam adjustment control end time instructs the electromagnetic reflection surface control unit to end control of each electromagnetic unit of the electromagnetic reflection surface at the beam adjustment control end time.

In an exemplary embodiment, the transmitting device is further configured to receive a measurement result set transmitted by the receiving device, wherein the measurement result set includes a signal measurement result corresponding to the target time zone; The transmitting device may also determine the preset direction indicated by the preset direction information corresponding to the target time zone according to the target time zone, and transmit a signal measurement result corresponding to the target time zone to a signal corresponding to the preset direction. It is configured to determine as a result of measuring the signal.

In an exemplary embodiment, the receiving device is further configured to receive corresponding relationship information transmitted by the transmitting device, wherein the corresponding relationship information is a corresponding relationship between the preset direction and the target time zone, or the corresponding relationship information. relationship information is a corresponding relationship between the preset direction and the target pilot signal; The receiving device may further, if the correspondence information corresponds to the preset direction and the target time zone, determine a signal measurement result corresponding to the target time zone as a signal measurement result corresponding to the preset direction; or if the corresponding relationship is the corresponding relationship between the preset direction and the target pilot signal, a signal measurement result corresponding to the target pilot signal is determined as a signal measurement result corresponding to the preset direction.

In an exemplary embodiment, the transmitting device or the receiving device may further, according to the preset direction and the position and height of the electromagnetic reflection surface, the reflected beam corresponding to each preset direction in the target area. Determines the positional coordinates (xi, yi) of and determines the value of the signal measurement result corresponding to the preset direction as the ordinate coordinate (zi) corresponding to the positional coordinates (xi, yi), wherein i is the base an identifier of the reflected beam corresponding to the set direction; Obtain a fitted Gaussian function by performing Gaussian function fitting according to the coordinate range in which the target region is located, the positional coordinates (xi, yi), and the corresponding ordinate coordinates (zi), and correspond to the vertices of the fitted Gaussian function It is configured to obtain a positioning result of positioning the receiving device according to the coordinates to be.

In one exemplary embodiment, a fitted Gaussian function is obtained by performing Gaussian function fitting according to a coordinate range in which the target region is located, the location coordinates (xi, yi), and the corresponding ordinate coordinate (zi), and the fitting Obtaining a positioning result of positioning the receiving device according to the coordinates corresponding to the vertices of the Gaussian function is obtained by sampling the abscissa range and the ordinate range in which the target area is located according to preset coordinate intervals, respectively, to obtain a set of sampled abscissas and obtaining a set of ordinates; Determine the ordinate coordinates (zw) corresponding to each abscissa (xw) in the set of abscissas from the ordinate coordinates (zi) corresponding to the position coordinates (xi, yi), and determine the ordinate axis corresponding to the position coordinates (xi, yi) Determine the ordinate coordinate zp corresponding to each ordinate yp in the ordinate set from the coordinate zi, wherein w and p are positive integers in the interval [1, n], and n is the number of samples to be sampled. step; Performing one-dimensional Gaussian function fitting according to the set of abscissas and the set of coordinates (xw, zw) composed of the set of ordinates (xw, zw) corresponding to each abscissa (xw) among the set of abscissas to obtain a fitted first Gaussian function; Obtaining a fitted second Gaussian function by performing one-dimensional Gaussian function fitting according to the ordinate set and a coordinate set (yp, zp) composed of ordinate coordinates (zp) corresponding to each ordinate (yp) among the set of ordinates; And determining a first coordinate (xt) corresponding to a vertex of the first Gaussian function and a second coordinate (yt) corresponding to a vertex of the second Gaussian function, and determining the xt and the yt of each of the positioning results determining an abscissa and an ordinate, wherein xt is an abscissa within the abscissa range, and yt is an ordinate within the ordinate range.

In an exemplary embodiment, the transmitting device or the receiving device further configures the reflected beam corresponding to each preset direction in the target area according to the preset direction and the position and height of the electromagnetic reflection surface. Determine the location coordinates (xi, yi), and determine the value of the signal measurement result corresponding to the preset direction as the vertical axis coordinate (zi) corresponding to the location coordinate, wherein i is the reflection corresponding to the preset direction is the identifier of the beam; obtaining a fitted 2D Gaussian function by fitting a 2D Gaussian function according to a set of coordinates (xi, yi, zi) composed of the positional coordinates (xi, yi) and the ordinate coordinates (zi); Determine the coordinates (xt, yt) corresponding to the vertices of the two-dimensional Gaussian function, and determine the coordinates (xt, yt) as a positioning result obtained by positioning the receiving device, wherein the xt is the target area is an abscissa within a range of abscissas where the target region is located, and yt is an ordinate within a range of ordinates where the target region is located.

In an exemplary embodiment, when the transmitting device is configured to determine a signal measurement result corresponding to the preset direction, and position the receiving device according to the preset direction and the signal measurement result, the transmitting device further , Determine target direction information according to a positioning result obtained by positioning the receiving device through the transmitting device, wherein the target direction information is determined by the electromagnetic reflecting surface control unit according to the target direction information for each electromagnetic unit of the electromagnetic reflecting surface. and directs a reflected beam formed on the electromagnetic reflection surface to the receiving device by a frequency signal transmitted by the transmitting device by instructing control of a reflection coefficient of .

In an exemplary embodiment, when the receiving device is configured to determine a signal measurement result corresponding to the preset direction, and position the receiving device according to the preset direction and the signal measurement result, the receiving device further , Determine target direction information according to a positioning result obtained by positioning the receiving device through the receiving device, wherein the target direction information is determined by the electromagnetic reflecting surface control unit according to the target direction information for each electromagnetic unit of the electromagnetic reflecting surface. and directs a reflected beam formed on the electromagnetic reflection surface to the receiving device by a frequency signal transmitted by the transmitting device by instructing control of a reflection coefficient of .

It should be noted that each of the above modules may be implemented through software or hardware, and in the case of the latter, it may be implemented in the following ways, but is not limited thereto: all of the above modules are located on the same processor; Alternatively, each of the above modules is located in different processors in any combination.

Embodiments of the present application further provide a computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, and the computer program is configured to perform steps in any of the above method embodiments when executed.

In one exemplary embodiment, the computer readable storage medium is a U disk, a read-only memory (Read-Only Memory, abbreviation: ROM), a random access memory (Random Access Memory, abbreviation: RAM), a removable hard disk, a magnetic disk Alternatively, it may include various media capable of storing a computer program, such as an optical disk, but is not limited thereto.

Embodiments of the present application further provide an electronic device, wherein the electronic device includes a memory and a processor, wherein a computer program is stored in the memory, and the processor executes a computer program to perform steps in any of the method embodiments above. is configured to

In one exemplary embodiment, the electronic device may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.

For specific examples of this embodiment, reference may be made to the examples described in the above embodiments and exemplary embodiments, and this embodiment does not further explain them.

It is obvious to those skilled in the art that each module or each step of the present application may be implemented through a general computing device, and they may be integrated in a single computing device or distributed in a network composed of a plurality of computing devices, and the computing device may be can be implemented using executable program code, which can be stored in a storage device and executed on a computing device, and in some cases, can perform steps shown or described in an order different from the order herein; or Each of these modules may be manufactured as an integrated circuit module, or a plurality of modules or steps among them may be manufactured as a single integrated circuit module. As such, it should be understood that this application is not limited to any particular hardware and software combination.

The above are only preferred embodiments of the present application, and are not intended to limit the present application, and for those skilled in the art, the present application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the principles of this application shall fall within the protection scope of this application.

Claims (17)

In the positioning method of the receiving device,
transmitting a pilot signal to an electromagnetic reflection surface through a transmitting device;
The adjustment and control information is transmitted to the electromagnetic reflection surface control unit through the transmitting device, wherein the adjustment and control information includes timing information and adjustment and control direction information, and the adjustment and control information is transmitted by the electromagnetic reflection surface control unit to the target time zone. A pilot signal is used to instruct a reflected beam formed on the electromagnetic reflection surface to be directed in a preset direction, wherein the preset direction is a direction indicated by preset direction information corresponding to the target time zone, and the preset direction is directed to a target area, the timing information includes the target time zone, the adjustment control direction information includes the preset direction information, and the pilot signal transmitted through the transmitter includes the target pilot signal. step; and
A signal measurement result corresponding to the preset direction is determined through the transmitter or receiver, and the receiver is positioned according to the preset direction and the signal measurement result, wherein the signal measurement result is located in the target area. The receiving device's positioning method comprising the step of obtaining a result obtained by measuring the target pilot signal reflected along the preset direction by the receiving device.
According to claim 1,
Before the step of transmitting the pilot signal to the electromagnetic reflection surface through the transmission device, the method further includes: determining the adjustment control information according to the target area through the transmission device;
The step of determining the adjustment and control information according to the target area may include determining a plurality of preset direction information according to a plurality of sub areas obtained by dividing the target area, and determining a plurality of pieces of preset direction information according to the plurality of preset direction information. determining the timing information, wherein each of the preset direction information corresponds to each sub-area of the plurality of sub-areas in a one-to-one correspondence, the timing information includes a plurality of the target time zones, and each of the target time zones respectively one-to-one correspondence with the preset direction information of; or determining a plurality of preset directions for directing the target region, determining each preset direction information as one preset direction among the plurality of preset directions, and determining the plurality of preset direction information determining the timing information according to the method, wherein the timing information includes a plurality of target time zones, and each of the target time zones corresponds to each of the preset direction information on a one-to-one basis.
According to claim 1,
After the step of transmitting the adjustment control information to the electromagnetic reflective surface control unit through the transmitting device, the method comprises:
determining a target reflection coefficient according to the preset direction information through the electromagnetic reflection surface control unit; and
Adjusting the reflection coefficient of each electromagnetic unit of the electromagnetic reflection surface to the target reflection coefficient through the electromagnetic reflection surface control unit to form a reflected beam in the predetermined direction on the electromagnetic reflection surface; The reflection coefficient of each electromagnetic unit includes at least one of width, phase, and polarization.
According to claim 1,
If the preset direction information is the target reflection coefficient of each electromagnetic unit corresponding to the preset direction, after the step of sending adjustment control information to the electromagnetic reflection surface control unit through the transmitting device, the method comprises:
Adjusting the reflection coefficient of each electromagnetic unit of the electromagnetic reflection surface to the target reflection coefficient through the electromagnetic reflection surface control unit to form a reflected beam in the predetermined direction on the electromagnetic reflection surface; The reflection coefficient of each electromagnetic unit includes at least one of width, phase, and polarization.
According to claim 1,
If the preset direction information is an input parameter corresponding to the preset direction, after the step of sending adjustment control information to an electromagnetic reflective surface control unit through the transmitting device, the method comprises:
The electromagnetic reflection surface control unit determines a target reflection coefficient according to the input parameter, and adjusts the reflection coefficient of each electromagnetic unit of the electromagnetic reflection surface to the target reflection coefficient, so that the electromagnetic reflection surface reflects the predetermined direction. Forming a beam; wherein the input parameter determines the target reflection coefficient, and the reflection coefficient of each electromagnetic unit includes at least one of a width, a phase, and a polarization.
According to claim 1,
The adjustment control information,
Further including one of a beam steering control start time and a beam steering control end time,
The beam steering control start time is used to instruct the electromagnetic reflective surface control unit to start controlling each electromagnetic unit of the electromagnetic reflective surface to control a reflected beam direction of the electromagnetic reflective surface at the beam steering control start time. ;
The beam adjustment control end time is used to instruct the electromagnetic reflection surface control unit to end control of each electromagnetic unit of the electromagnetic reflection surface at the beam adjustment control end time.
According to claim 1,
When determining a signal measurement result corresponding to the preset direction through the transmitter and positioning the receiver according to the preset direction and the signal measurement result, the signal corresponding to the preset direction through the transmitter Prior to the step of determining the signal measurement result, the method comprises:
receiving a measurement result set transmitted by the receiving device through the transmitting device, wherein the measurement result set includes a signal measurement result corresponding to the target time zone;
Determining a signal measurement result corresponding to the preset direction through the transmitting device,
Determining the preset direction indicated by the preset direction information corresponding to the target time zone according to the target time zone, and determining a signal measurement result corresponding to the target time zone as a signal measurement result corresponding to the preset direction A method for positioning a receiving device comprising the steps of:
According to claim 1,
When determining a signal measurement result corresponding to the preset direction through the receiving device and positioning the receiving device according to the preset direction and the signal measurement result, the signal corresponding to the preset direction through the receiving device Prior to the step of determining the signal measurement result, the method comprises:
Correspondence information transmitted by the transmission device is received through the reception device, wherein the correspondence information is a correspondence between the preset direction and the target time zone, or the correspondence information includes the preset direction and the target time zone. It further includes; a step corresponding to the pilot signal;
Determining a signal measurement result corresponding to the preset direction through the receiving device may include, when the corresponding relationship information is a correspondence relationship between the preset direction and the target time zone, the signal measurement result corresponding to the target time zone. determining a signal measurement result corresponding to a preset direction; or determining a signal measurement result corresponding to the target pilot signal as a signal measurement result corresponding to the preset direction when the correspondence relationship is a correspondence relationship between the preset direction and the target pilot signal. positioning method.
According to claim 1,
The step of positioning the receiving device according to the preset direction and the signal measurement result,
According to the preset direction and the position and height of the electromagnetic reflection surface, the reflected beam corresponding to each preset direction determines positional coordinates (xi, yi) in the target area, and determining a value of a corresponding signal measurement result as a vertical axis coordinate (zi) corresponding to the positional coordinates (xi, yi), where i is an identifier of a reflected beam corresponding to the preset direction; and
Obtain a fitted Gaussian function by performing Gaussian function fitting according to the coordinate range in which the target region is located, the positional coordinates (xi, yi), and the corresponding ordinate coordinates (zi), and correspond to the vertices of the fitted Gaussian function A positioning method of a receiving device comprising the step of obtaining a positioning result of positioning the receiving device according to coordinates to be used.
According to claim 9,
Obtain a fitted Gaussian function by performing Gaussian function fitting according to the coordinate range in which the target region is located, the positional coordinates (xi, yi), and the corresponding ordinate coordinates (zi), and correspond to the vertices of the fitted Gaussian function Obtaining a positioning result of positioning the receiving device according to the coordinates to be,
obtaining a sampled set of abscissas and ordinates by sampling a range of abscissas and ordinates in which the target region is located at predetermined coordinate intervals;
Determine the ordinate coordinates (zw) corresponding to each abscissa (xw) in the set of abscissas from the ordinate coordinates (zi) corresponding to the position coordinates (xi, yi), and determine the ordinate axis corresponding to the position coordinates (xi, yi) Determine the ordinate coordinate zp corresponding to each ordinate yp in the ordinate set from the coordinate zi, wherein w and p are positive integers in the interval [1, n], and n is the number of samples to be sampled. step;
Performing one-dimensional Gaussian function fitting according to the set of abscissas and the set of coordinates (xw, zw) composed of the set of ordinates (xw, zw) corresponding to each abscissa (xw) among the set of abscissas to obtain a fitted first Gaussian function; Obtaining a fitted second Gaussian function by performing one-dimensional Gaussian function fitting according to the ordinate set and a coordinate set (yp, zp) composed of ordinate coordinates (zp) corresponding to each ordinate (yp) among the set of ordinates; and
A first coordinate (xt) corresponding to the vertex of the first Gaussian function and a second coordinate (yt) corresponding to the vertex of the second Gaussian function are determined, and the xt and the yt are respectively the abscissas of the positioning results and an ordinate, wherein xt is an abscissa within the abscissa range, and yt is an ordinate within the ordinate range.
According to claim 1,
The step of positioning the receiving device according to the preset direction and the signal measurement result,
determining position coordinates (xi, yi) of the reflected beam corresponding to each preset direction in the target area according to the preset direction and the position and height of the electromagnetic reflection surface, corresponding to the preset direction; determining a value of a signal measurement result as a vertical axis coordinate (zi) corresponding to the position coordinate, wherein i is an identifier of a reflected beam corresponding to the preset direction;
Obtaining a fitted 2D Gaussian function by fitting a 2D Gaussian function according to a set of coordinates (xi, yi, zi) composed of the positional coordinates (xi, yi) and the ordinate coordinates (zi); and
Determine the coordinates (xt, yt) corresponding to the vertices of the two-dimensional Gaussian function, and determine the coordinates (xt, yt) as a positioning result obtained by positioning the receiving device, where xt is where the target area is located and an abscissa within a range of abscissas and wherein yt is an ordinate within a range of ordinates in which the target area is located.
According to claim 1,
After determining a signal measurement result corresponding to the preset direction through the transmitter and positioning the receiver according to the preset direction and the signal measurement result, the method comprises:
Determine target direction information according to a positioning result obtained by positioning the receiving device through the transmitting device, wherein the target direction information is determined by the electromagnetic reflecting surface control unit for each electromagnetic unit of the electromagnetic reflecting surface according to the target direction information. and instructing to control a reflection coefficient so that a reflected beam formed on the electromagnetic reflection surface by a frequency signal transmitted by the transmitting device is directed toward the receiving device.
According to claim 1,
After determining a signal measurement result corresponding to the preset direction through the receiving device, and positioning the receiving device according to the preset direction and the signal measurement result, the method,
Determine target direction information according to a positioning result obtained by positioning the receiving device through the receiving device, wherein the target direction information is determined by the electromagnetic reflecting surface control unit for each electromagnetic unit of the electromagnetic reflecting surface according to the target direction information. and instructing to control a reflection coefficient so that a reflected beam formed on the electromagnetic reflection surface by a frequency signal transmitted by the transmitting device is directed toward the receiving device.
In the positioning device of the receiving device,
a transmission module for transmitting a pilot signal to the electromagnetic reflection surface through the transmission device;
The adjustment and control information is transmitted to the electromagnetic reflection surface control unit through the transmitting device, wherein the adjustment and control information includes timing information and adjustment and control direction information, and the adjustment and control information is transmitted by the electromagnetic reflection surface control unit to the target time zone. A pilot signal is used to instruct a reflected beam formed on the electromagnetic reflection surface to be directed in a preset direction, wherein the preset direction is a direction indicated by preset direction information corresponding to the target time zone, and the preset direction is directed to a target area, the timing information includes the target time zone, the adjustment control direction information includes the preset direction information, and the pilot signal transmitted through the transmitter includes the target pilot signal. coordinating control module; and
A signal measurement result corresponding to the preset direction is determined through the transmitter or receiver, and the receiver is positioned according to the preset direction and the signal measurement result, wherein the signal measurement result is located in the target area. and a positioning module that is a result obtained by measuring the target pilot signal reflected along the preset direction by the receiving device.
In the positioning system of the receiving device,
A transmitting device, an electromagnetic reflecting surface control unit, an electromagnetic reflecting surface and a receiving device,
The transmission device transmits a pilot signal to the electromagnetic reflection surface and transmits adjustment and control information to the electromagnetic reflection surface control unit, wherein the adjustment and control information includes timing information and adjustment and control direction information, wherein the adjustment and control information includes the electromagnetic reflection surface control unit. A reflective surface control unit directs a reflected beam formed on the electromagnetic reflective surface by a target pilot signal to a preset direction in a target time period, wherein the preset direction corresponds to preset direction information corresponding to the target time period. direction, the preset direction is directed to a target area, the timing information includes the target time zone, the coordination and control direction information includes the preset direction information, and the pilot transmitted through the transmitter the signal includes the target pilot signal;
the electromagnetic reflection surface control unit is configured to direct a reflected beam formed on the electromagnetic reflection surface by the target pilot signal to the predetermined direction in the target time period according to the adjustment control information;
the receiving device is configured to obtain a measurement result by measuring the received target pilot signal reflected along the predetermined direction, wherein the receiving device is located in the target area;
The transmitting device or the receiving device is further configured to determine a signal measurement result corresponding to the preset direction, and position the receiving device according to the preset direction and the signal measurement result corresponding to the preset direction. positioning system.
In the computer readable storage medium,
A computer readable storage medium having stored thereon a computer program, the computer program being configured to, when executed, perform the method according to any one of claims 1 to 13.
In electronic devices,
An electronic device comprising a memory and a processor, wherein a computer program is stored in the memory, and the processor executes the computer program to perform the method according to any one of claims 1 to 13.

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